JPS5876486A - Fluorescent material - Google Patents
Fluorescent materialInfo
- Publication number
- JPS5876486A JPS5876486A JP56175210A JP17521081A JPS5876486A JP S5876486 A JPS5876486 A JP S5876486A JP 56175210 A JP56175210 A JP 56175210A JP 17521081 A JP17521081 A JP 17521081A JP S5876486 A JPS5876486 A JP S5876486A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- fluorescent material
- yttrium oxide
- oxide
- emission peak
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は螢光体、詳しくは２価のユーロピウムで付活さ
れたアルミン酸塩螢光体に関するＰ従来、２価のユーロ
ピウムで付活されたアルミン酸塩螢光体としては、特開
昭４９−７７８９３号公報に記載されているように、た
とえばＢａＭｇ２Ａｌ １６０２□：Ｅｕ なる組成
式で表わされる２価のユーロピウムで付活されたバリウ
ムマグネシウムアルミネート螢光体が知られている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to phosphors, particularly aluminate phosphors activated with divalent europium. For example, a barium magnesium aluminate phosphor activated with divalent europium expressed by the composition formula BaMg2Al 1602□:Eu is known as described in Japanese Patent Application Laid-Open No. 49-77893. ing.
しかしながら、この２価のユーロピウムで付活された青
色螢光体は発光ピーク高さが不十分であり、その向上が
望まれていた゛。However, this blue phosphor activated with divalent europium has an insufficient emission peak height, and it has been desired to improve it.
本発明はこのような事情にもとづいてなされたもので、
発光ピーク高さを向上させた２価のユーロピウム付活フ
ルく、ン酸塩螢光体を提供することを目的とするもので
ある。 −
発明者らは、２価のユーロピウムで付活されたバリウム
マグネシウムアルミネート螢光体について詳細な実験を
行なった結果、この螢光体にさらに酸化イツトリウムを
固溶させることによって。The present invention was made based on these circumstances, and
The object of the present invention is to provide a divalent europium-activated phosphate phosphor with improved emission peak height. - The inventors conducted detailed experiments on a barium magnesium aluminate phosphor activated with divalent europium, and found that by dissolving yttrium oxide in this phosphor.
その発光ピーク高さを〒層内上させ得ることを見出した
。すなわち、発明者らの実験によれば、２価のユーロピ
ウムで付活されたバリウムマグネシウムアルミネート螢
光体は、その組成式が（Ｂ ａ 、 Ｅ ｕ ） Ｏ−
ｘ Ｍｇ Ｏ瞭ｙ Ｙ２０３・ｚ Ａ １２０ｓで表わ
されるものであり、上記組成式の”＄７１２の範囲が、
それぞれ
０．８≦Ｘ≦３．０
０＜ｙ≦９．６
４≦２≦８
の場合に、より好ましい発光ピーク高さの向上が認めら
れたものである。さらに言えば１本発明にかかる螢光体
の場合、そのＡｌ２Ｏ３量２が４ ＞ ｚまたは８ （
ｚの領域においても酸化イツトリウムの固溶により発光
ピーク高さが向上するという効果は明らかに認められた
が、これらの向上された発光ビータ高さをもってしても
現在実用されている８６Ｍ９２Ａｌ、６０２７：Ｅｕ２
＋螢光体の発光ピーク高さを越えるものは得られなかっ
た。また−句０量Ｉについては、・Ｏ，Ｂ＞ｘまたは３
（ｘの領域において良好な螢光体は得られなかった。It has been found that the height of the emission peak can be increased within the layer. That is, according to the inventors' experiments, the barium magnesium aluminate phosphor activated with divalent europium has the composition formula (B a , Eu ) O-
It is expressed as
A more preferable improvement in the emission peak height was observed when 0.8≦X≦3.0, 0<y≦9.6, and 4≦2≦8, respectively. More specifically, in the case of the phosphor according to the present invention, the Al2O3 amount 2 is 4 > z or 8 (
The effect of improving the luminescence peak height due to the solid solution of yttrium oxide was clearly recognized in the z region as well, but even with these improved luminescence beater heights, 86M92Al, 6027: Eu2
+No results were obtained that exceeded the emission peak height of the phosphor. Also, for the -phrase 0 quantity I, ・O, B>x or 3
(A good phosphor was not obtained in the x region.
本発明にかかる螢光体は以下に述べる製造方法によって
得られる。The phosphor according to the present invention can be obtained by the manufacturing method described below.
まず、螢光体原料としては （１）酸化イツトリウム（Ｙ２Ｏ３）または硝酸塩。First, as a phosphor raw material, (1) Yttrium oxide (Y2O3) or nitrate.
塩、ハロゲン化物等の高温で容易にＹ２Ｏ３に変化し得
る化合物
（２）酸化バリウム（Ｂａｄ）または硝酸塩、炭酸塩。Compounds that can be easily converted to Y2O3 at high temperatures, such as salts and halides (2) Barium oxide (Bad), nitrates, and carbonates.
ハロゲン化物等の高温で容易にＢａＯに変化し得る化合
物
（３）酸化マグネシウム（Ｍ（ＪＯ）または硝酸塩、炭
酸塩、ハロゲン化物等の高温で容易にＭｑＯに変化し得
る化合物
（４） 酸化アルミニウム（Ａ１２ｏ３）または硝酸
塩。Compounds that can be easily converted to BaO at high temperatures such as halides (3) Magnesium oxide (M(JO) or compounds that can be easily converted to MqO at high temperatures such as nitrates, carbonates, and halides (4) Aluminum oxide ( A12o3) or nitrate.
水酸化物、ハロゲン化物等の高温で容易にＡｌ２Ｏ３に
変化し得る化合物
に変化し得る化合物
が用いられる。上記原料を秤量し、ボールミルにて十分
に粉砕混合する。これをアルミナ坩堝等に゛充填し、還
元雰囲気中において１１００ｃ〜１６００ｃの範囲内の
温度で数時間焼成することによって螢光体を得る。Compounds that can be easily converted into Al2O3 at high temperatures, such as hydroxides and halides, are used. The above raw materials are weighed and sufficiently ground and mixed in a ball mill. A phosphor is obtained by filling this into an alumina crucible or the like and firing it in a reducing atmosphere at a temperature within the range of 1100 to 1600 C for several hours.
以下１本発明の実施例について述べる。An embodiment of the present invention will be described below.
実施例１
酸化イツトリウム ２．２６ｇ炭酸バリウ
ム １７．７６ｇ塩基性炭酸マグネシウ
ム ９．４２ｇ酸化アルミニウム
４８．９６ｇ酸化ユーロピウム １．７
６ｇふっ化アルミニウム ３ 、３６ｇ上記
原料をボールミルにて十分に粉砕混合し、還元性雰囲気
中１１００ｒ〜１６００２：”の範囲内の温度で数時間
焼成し螢晃体を得た。Example 1 Yttrium oxide 2.26g Barium carbonate 17.76g Basic magnesium carbonate 9.42g Aluminum oxide
48.96g europium oxide 1.7
6 g of aluminum fluoride 3 , 36 g of the above raw materials were thoroughly ground and mixed in a ball mill, and fired in a reducing atmosphere at a temperature within the range of 1100 r to 1600 mm for several hours to obtain a phosphorescent body.
得られた螢光体の組成式は次のとおりである。The compositional formula of the obtained phosphor is as follows.
（ＢａＯ１９Ｅｕ０．１）０・ＭｑＯ−０，１Ｙ２０３
・５１２０３
この螢光体の紫外線励起による発光ピーク高さは酸化イ
ツトリウムを含まない従来の螢光体（Ｂａ０．９Ｅｕｏ
、、）０・Ｍｑｏ−５Ａ１２ｏ３の発光ピーク高さに比
べて１０５％であり、明らかな向上が認められた。(BaO19Eu0.1)0・MqO-0,1Y203
・51203 The height of the emission peak due to ultraviolet excitation of this phosphor is higher than that of a conventional phosphor that does not contain yttrium oxide (Ba0.9Euo
)0.Mqo-5A12o3, which was 105%, and a clear improvement was observed.
実施例２
酸化イツトリウム ０．２３ｇ炭酸バリウ
ム １３．３２ｇ塩化バリウム
４．６８ｑふっ化マグネシウム
６ 、８５ｇ酸化アルミニウム ６１．２０
（ｉ酸化ユーロピウム １．７６ｇ上記原
料を用い、実施例１と同様にして螢光体を得た。Example 2 Yttrium oxide 0.23g Barium carbonate 13.32g Barium chloride
4.68q magnesium fluoride
6, 85g aluminum oxide 61.20
(1.76 g of europium oxide) A phosphor was obtained in the same manner as in Example 1 using the above raw materials.
得られた螢光体の組成式は次のとおシである。The compositional formula of the obtained phosphor is as follows.
（Ｂａ０．９Ｅｕ０．１＼）６・１．１ＭｑＯ・０．ｏ
１Ｙ２ｏ３・Ａｌ２Ｏ３
この螢光体の紫外線励起による発光ピーク高さは。(Ba0.9Eu0.1\)6.1.1MqO.0. o
1Y2o3・Al2O3 What is the height of the emission peak of this phosphor when excited by ultraviolet light?
酸化イツトリウムを含まない従来の螢光体（Ｂａ
Ｅｕ ０・１．１Ｍｑ０・６Ａ１２０３０．９
０．１
の発光ピーク高さに比べて１０７％であり、明らかな向
上が認められた。A conventional phosphor that does not contain yttrium oxide (Ba
Eu 0・1.1Mq0・6A12030.9
This was 107% compared to the emission peak height of 0.1, which was a clear improvement.
実施例３
フッ化イツトリウム １４ 、６９９炭
酸バリウム １６ 、７７ｑ塩基性
炭酸マグネシウム １８．８４９酸化アルミニ
ウム ３９．９８９酸化ユーロピウム
２ 、６４９ふり化アルミニウム
０．３４ｇ上記原料を用い、実施例１と同様
にして螢光体を得た。Example 3 Yttrium fluoride 14, 699 Barium carbonate 16, 77q Basic magnesium carbonate 18.849 Aluminum oxide 39.989 Europium oxide
2, 649 aluminum fluoride
A phosphor was obtained in the same manner as in Example 1 using 0.34 g of the above raw material.
得られた螢光体の組成式は次のとおシである。The compositional formula of the obtained phosphor is as follows.
（Ｂａ Ｅｕ
Ｏ，８５０，１５）０°２ＭｑＯ°０・６Ｙ２０３ＡＩ
Ｏ
３
この螢光体の紫外線励起による発光ピーク高さは。(Ba Eu O, 850, 15) 0°2MqO°0・6Y203AI
O 3 What is the height of the emission peak of this phosphor when excited by ultraviolet light?
酸化イツトリウムを含まない従来の螢光体（Ｂａｏ、８
６Ｅｕ０．１６）Ｏ−２Ｍ（７０−４Ａ１２０３の発光
ピーク高さに比べて１５０％と大巾に向上されていた。Conventional fluorophores containing no yttrium oxide (Bao, 8
Compared to the emission peak height of 6Eu0.16)O-2M (70-4A1203), it was greatly improved by 150%.
実施例４
酸化イツトリウム ０ 、２３ｇ炭酸バ
リウム １７．７６ｇ６ｇフッグネ
シウム １８．６５ｇ酸化アルミニウム
７９ 、９７ｇ酸化ユーロピウム
１．７６ｇフッ化アルミニウム
２．６９ｇ上記原料を用い、実施例１と同様にして螢光
体を得た。Example 4 Yttrium oxide 0, 23g Barium carbonate 17.76g 6g Fugnesium 18.65g Aluminum oxide
79, 97g europium oxide
1.76g aluminum fluoride
A phosphor was obtained in the same manner as in Example 1 using 2.69 g of the above raw material.
得られた螢光体の組成式は次のとおりである。The compositional formula of the obtained phosphor is as follows.
（Ｂａ□、９Ｅｕ□、１）Ｏ−３ＭｑＯ−０，０１Ｙ２
０３−Ａｌ２Ｏ３
この螢光体の紫外線励起による発光ピーク高さは酸化イ
ツトリウムを含まない従来の螢光体（Ｂａ□、５Ｅｕｏ
、、）０−ａＭｇｏ−ａＡｌ２Ｏ３の発光ピーク高さに
比べて、１０３％であり明ら以上説明したように１本発
明は２例のユーロピウム付活バリウムマグネシウムアル
ミネート螢光体に酸化イツトリウムを固溶させることに
よって、発光ピーク高さを向上させた優れた胃色螢光体
を提供することができるものである。(Ba□, 9Eu□, 1) O-3MqO-0,01Y2
03-Al2O3 The height of the emission peak due to ultraviolet excitation of this phosphor is higher than that of conventional phosphors that do not contain yttrium oxide (Ba□, 5Euo
,,) 0-aMgo-aAl2O3, it is 103% of the emission peak height.As explained above, the present invention has two examples of europium-activated barium magnesium aluminate phosphors fixed with yttrium oxide. By dissolving it, it is possible to provide an excellent gastrochromic phosphor with improved emission peak height.
Claims (1)
アルミネート螢光体に酸化イツトリウム゛ を固溶さ
せてなることを特徴とする螢光体。A phosphor comprising a barium magnesium aluminate phosphor activated with divalent europium and a solid solution of yttrium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56175210A JPS5876486A (en) | 1981-10-30 | 1981-10-30 | Fluorescent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56175210A JPS5876486A (en) | 1981-10-30 | 1981-10-30 | Fluorescent material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5876486A true JPS5876486A (en) | 1983-05-09 |
| JPS6360800B2 JPS6360800B2 (en) | 1988-11-25 |
Family
ID=15992213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56175210A Granted JPS5876486A (en) | 1981-10-30 | 1981-10-30 | Fluorescent material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5876486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60139784A (en) * | 1983-12-27 | 1985-07-24 | Matsushita Electronics Corp | Phosphor |
| JP2002047010A (en) * | 2000-07-28 | 2002-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing barium complex metallic oxide powder |
-
1981
- 1981-10-30 JP JP56175210A patent/JPS5876486A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60139784A (en) * | 1983-12-27 | 1985-07-24 | Matsushita Electronics Corp | Phosphor |
| JP2002047010A (en) * | 2000-07-28 | 2002-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing barium complex metallic oxide powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6360800B2 (en) | 1988-11-25 |
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